int input for in range append list map int input split for in range fo

n = int(input())
a = 0
A = []
B = [0]*n


for i in range(n):
    A.append(list(map(int, input().split())))

for i in range(n):
    a = 0
    for j in range(n):
        if A[i][j] + A[j][i] == 1:
            B[i] += 1
            a += 1
        if A[i][j] + A[j][i] == 2:
            B[i] += 2
            a += 1
    if a < 2:
        B[i] = 0
            
print(sum(B))
print(*B)